Testing and display device



Feb., l2 19240 M. F. JAMAR TESTING AND DISPLAY DEVICE Filed sept. 25. 1922 2 sheets-sheet n,

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B E F RUB-WEAR TESTING Feb., 12, 19% y 1,483,662,

M. F. JAMAR TESTING AND DISPLAY DEVICE Filed Sept. 25, 1922 2 Sheets-Sheet 2' Patentes. Feb.y 12 1924.

UNITED STATES MITCHELL F. JAMAR, OF DULUTH, MINNESOTA.

TESTING AND" DISPLAY DEVICE.

Application and september l25, 1922. serial 110.590,521.

To all wit-omi? it may-concem:

Be it known that I, MITCHELL F. J AMAR, a citizen of the United States, residin of Minnesota, have invented certain new and useful Improvements in Testing and Display Devices, of which the following is a specification, reference4 being had therein to the. accompanying drawing.

fabric testing and display device.

y(lne object of the invention is to provide as simple a device of this character as posble for testing the frictional wearing properties of a fabric held in vertical position to /avoid the rolling of the frictionally severed /nap as much as possible.

Another object is to provide an interesting and attractive display of such a device in connection with its operation, so that the el'cct of the operation lmay be readily determined.

Other objects and advantages will appear in the further description of the invention.

Referring to the accompanying drawings forming part of this application, in which like reference characters indicate like parts:

Figure 1 isa front elevation of the upper portion of a stand having the improved testing and display device applied thereto;

Figure 2 is a side elevation of the testing mechanism showing a portion thereof 1n section for convenience in illustration;

Figure 3 is a top plan view of the larger one of the testing blocks'.

l1 represents an upright stand of any convenient structure preferably so made as to house the driving mechanism for the testing machine. The top of this stand is illustrated at 2 and upon which is centrally mounted an inverted U-shaped standard 3V made of light tubing ora round rod as desired. 'Upon and intermediate ofthe side of the upright member 3 is reciprocably 'mounted a fabric holding block 4 it preferably having a metal back illustrated at 5, to which back the guiding and holding clips or eyelets 6 are attached, the lat-ter surrounding the side members of the .upright 3. Thisblock is vsubstantially one-half the height of the upright memberl 3 and centrally upon the back 5 thereof is pivotally attached as at 7 the operating. pitman 8.

This latter extends downwardly through a convenient slot in the top 2 of thecablnet 1 and is attached pivotally as at 9 to the drivat` Duluth, inthe county of St. Louis and tate.

This invention relates "to a combination ing wheel or disc 10 which is journalled'as at l1 and driven continuously in any desired manuel' referably as by a small electric motor in icated at 12. v

From the above it is evident that asthe wheel or disc 10 rotates the `block 4 is reciprocated vertically in the guiding or upright member 3. The block 4' is preferably made of wood so that a portion of fabric illustrated at 13 may be conveniently tacked upon the face thereof as by thumbtacks illustrated at 14. v

Just back of this block and pivotally mounted as at 15 is an upright vframe structure the base of which is indicated at 16 and the upstanding side members indicat` ed at 17 these latte-1` being in the shape of small angle bars. The face of the angles 17 carry rigidly fixed thereto the horizontally extending. pins 18 which receive the larger fabric supporting` block 19, the latter being readily slipped on and od' the pins manually when so desired.

The free end of the baseil'may be swung about as indicated in dotted linesl Figure 3 so as to carry the block. 19 to or from engagement with the block 4 when desired and when 'lined up with the block 4 may be held in such position by a suitable thumb screw 20 'extending downwardly into the top 2 of the cabinet.

rlhe blockl 19 is made of wood, the same as the block 4, so that the fabric 21.1may be applied thereto as by thumbtacks 22, and is mounted upon a metal back 23. rlihis back is engaged for the purpose of eontin` uously holding the two blocks in frictional contact by two pivotally mounted U-shaped braces 24 and 25, the one 24 being pivotally mounted as at 26 and 27 in the backwardly turned face of one of the upright angle barsk 17. and the brace 25 being pivotally mounted as at 28 in the other upright angle 17. The brace 24 is less in height than the brace 25 so as to fold inline therewith intermediate of its upper and lower horizontal extremities. .lust belowthe pivotal points of these two braces and withinpthe backwardly turned portions of the angle bars 17. is pivotally mounted, as upon the rotatable shaft 29, the bell-crank lever 30, the short vertically extending arm of which carries upon the free end thereof the horizontally disposed bar 31 which is sufficiently long to simultaneously engage the vertical portions of the two braces 24 and 25, as

alln

erank is mounted a suitable weight 32 which may be conveniently removed and replaced or otherwise changed as desired.

' By this arrangementit is evident that two pieces of fabric may be mounted one upon each block, the one upon the larger block being substantially twice as long as'the one on the smaller block. Then when the support for the larger block isk swung vinto position facing the smaller block, the Weight 32 ma be applied to the bell-crank lever which wi l maintain a uniform and constant frictional engagement of the two ieces of fabricon the blocks. Then when t e operating mechanism is set in motion the smaller block will continue to reciprocate vertically with the two pieces of' fabric rubbing a ainst eachl other and portions of the larger abric being visible at alltimesby anyone viewing he machine from the front thereof so that the wearing on same may be readily determined.

As a means for keeping a record of the number of frictional engagements or rubs of the blocks I have shown a recording meter 33 as mounted upon a suitableI upright bracket 34, having lever connections 35 andl 36 to the metal back 5 of the block 4, this being chine. p

Upon either side of the operablemechanism above described and upon the top of the cabinet I have shown two inclined supports 37 and 38. Upon these supports-are displayed pieces of the same lfabrlc as are being tested. However upon the display rack 37 I refer to exhibit a piece of the fabric39 w ich has not been tested or rubbed frictionally, while on the display7 rack v38 is shown a ieceof the fabric 40 which has beenteste by a certain predetermined num-v ber of rubs, the same being indicated upon the rack.

An illuminating device of any description may be resorted to, such for example asthe electric fixture indicated at 41.

From 4the foregoing it is evident that I also Visible from the face of the ma'- have devised al simple, practical, and attrae-- tive mechanism to simultaneously test the frictional wearing quality of a piece of fabric l and exhibit the result of same to prospec-fl frictionallyengaged this being accomplished by the ready removal of the lar erblock for inspection as previouslydescri ed.

The attraction to such an animated device for advertising purposes is obvious.

Having thus described my invention, what I claim and desire tosecure by Letters Patent, is: 1

1. yA device of the character described comprising in rcombination a suitable support, an upri ht horizontally yieldable fabric holding bIock upon the support, means for supplying constant yielding pressure to said b ook, a vertically reciprocable fabric holding block infront of the rst mentioned block, and normally 4contacting same means for reciprocating said last mentioned' block, and means for-visually recording the number of reciprocations of said lastl mentioned block. j y

2. A device of the character described comprising in combination a suitable sup ort, an

lupright' horizontally yieldable fabric holding block upon the support, means for ysupplymg constant yielding pressure to said block, a vertically reciprocable fabric holdi ing block in front of the first mentioned blockl and normally contacting same, means for reclprocating said last mentioned block,

means for visually recording the lnumber ofv reciprocations of said last mentioned block, and' gravitating'means holding the blocks frictionally engaged.

In testimony whereof I hereunto aflix my signature in the presence of two Witnesses.

S. CeBRoNsoN, S. GEO. STEVENS. 

